The Way Station by Owen G. Irons
But Cameron soon realises it is never that easy to leave trouble behind. A stagecoach arrives at the way station. On it is an outlaw smuggling fifty thousand in gold and a young woman named Becky Grant, who is on the run from a rejected suitor. On their trail is Sheriff Beaton, Becky's wide-eyed suitor and rival bandits in pursuit of treasure. Now, as a menacing dust storm gathers that threatens to keep them captive in the way station, Cameron Black knows he must use his guns once more -